Apparatus and methods for cleaning the components of a feed device
Apparatus and associated methods for cleaning a feed device are provided. For example, the present invention may provide a cleaning media for cleaning a printer or other device having a feed path along which cards or other stock media are fed during printing. The cleaning media, which can be used to automatically clean the feed device, can include an identification feature by which the feed device can identify the media. Thus, the feed device can distinguish the cleaning media from a stock media and or an improper cleaning media. The cleaning media can also define a stop portion that prevents the media from being entirely inserted into the feed path of the feed device. Thus, the cleaning media can be held stationary during part of the cleaning operation so that rollers or other moving members along the feed path make sliding contact with the cleaning media. In some cases, the feed device can be cleaned automatically, e.g., according to a predetermined program of operations that also notifies and prompts an operator during and prior to the cleaning operation.
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This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60/557,024, filed Mar. 26, 2004; and U.S. Provisional Patent Application Ser. No. 60/557,273, filed Mar. 29, 2004.
BACKGROUND OF THE INVENTION1) Field of the Invention
This invention relates to the cleaning of a feed device and, more particularly, to a cleaning media and associated methods for cleaning a feed device such as the head and rollers of a printer.
2) Description of Related Art
Conventional feed devices are used for feeding or transporting stock materials such as plastic cards, paper, and the like. For example, a typical printer defines a feed path along which stock is transported during printing. Rollers are disposed along the feed path and oriented generally perpendicular to the feed direction of the stock. The rollers are typically configured in pairs to define nips for engaging the stock in the feed path so that rotation of the rollers causes the stock to be fed or transported along the path.
It is known that debris such as dust, oil, moisture, ink, and the like can be introduced into the feed path and can interfere with the operation of the feeding or other processing of the stock. For example, if rollers are used to transport the stock through the feed path, the debris can interfere with the frictional engagement between the rollers and the stock. Further, in the case of a printer, the debris can interfere with the operation of the printing mechanism therein. For example, a card printer for thermally printing plastic cards can include a print head that disposes dye onto the cards, a magnetic head that programs a magnetic strip on the card, a smart card contact station with an electrical contact that contacts a conductive pad on the card to communicate with a chip on the card, and/or a lamination mechanism with heat rollers that applies laminates to the surfaces of the card. The operation of the print head, the magnetic head, the smart card contact station, and the lamination mechanism can be compromised by the presence of debris in the printer. Further, the cards are typically relatively slippery, and therefore debris on the cards or the rollers used to transport the cards through the feed path can prevent the rollers from transporting the cards properly.
According to a conventional cleaning operation for the card printer, the cards that are normally fed through the device are substituted with a cleaning card. The cleaning card can be fed through the printer in the conventional manner, and can be similar in size as the stock cards or longer than the stock cards. A typical cleaning card has a plastic core layer that is sandwiched between layers of felt that are soaked with isopropyl alcohol or the like so that the rollers and/or the heads of the printer are cleaned as the cleaning card is fed through the printer. By routinely feeding such a cleaning card through the printer, the feed path can be cleaned to maintain the proper operation of the printer. However, if the cleaning operation is not performed, or is performed with insufficient frequency, the printer will not be kept clean. In some cases, an operator of the printer may neglect the cleaning operation in order to avoid the time or expense associated with the cleaning operation. In addition, while the printer may include a display that prompts the operator regarding the cleaning operation, the prompts can be confusing and frustrating to the user, resulting in additional delay or neglect in cleaning. For example, the operator might use a cleaning card that has already been used, or the operator may perform the cleaning operation using a piece of stock material instead of the cleaning card.
Another problem is that most, if not all, conventional cleaning cards are designed to pass through a printer similar to a normal stock card, while cleaning different components as it goes. In some instances, a single pass of the card may not be enough to sufficiently clean the various components.
Thus, there exists a need for an improved apparatus and methods for cleaning the feed path of a feeding device. The apparatus and methods should provide effective cleaning of the feed path, thereby improving the operation of the device. In addition, the apparatus and methods should not be excessively difficult to implement so that effective cleaning can be easily achieved by the operator.
BRIEF DESCRIPTION OF THE DRAWINGSThe foregoing and other advantages and features of the invention, and the manner in which the same are accomplished, will become more readily apparent upon consideration of the following detailed description of the invention taken in conjunction with the accompanying drawings, which illustrate preferred and exemplary embodiments, but which are not necessarily drawn to scale, wherein:
According to one embodiment of the present invention, there is provided an apparatus and associated methods for cleaning a feed device such as a printer. For example, a cleaning media can be used to automatically clean the feed device. The cleaning media can include an identification feature by which the feed device can identify the cleaning media to assure that a proper cleaning media is used for the cleaning operation. In addition, the cleaning media can define a stop portion by which the media can be held stationary during at least part of the cleaning operation so that rollers or other members along the feed path make sliding contact with the cleaning media, thereby increasing the effectiveness of the cleaning operation. According to another embodiment of the present invention, there is provided a method by which the feed device can be cleaned, e.g., automatically, and in conjunction with a user-friendly interface by which an operator can be notified and prompted during and prior to the cleaning operation.
According to one embodiment, the cleaning media is a card that defines a laminar portion that extends in a longitudinal direction from a leading edge to an opposite end, which can be defined by a stop portion. The laminar portion of the card defines first and second opposite transverse edges and has a width sufficiently narrow so that the laminar portion can at least partially pass through a feed path of a feed device. According to one aspect of the invention, a stop portion of the card has at least one dimension that is greater than the corresponding dimension of the laminar portion and the feed path. Thus, the stop portion is configured to be retained by the feed device while the laminar portion is disposed in the feed path during cleaning, even while the rollers rotate against the card. For example, the stop portion can be wider than both the laminar portion and the feed path.
According to another aspect of the invention, the laminar portion also defines an identification feature configured to identify the cleaning card to the printer. The identification feature can be of any nature for identifying the card as a cleaning card, such as either a physical attribute of the card or data stored on or in the card. For example, the identification feature could be a physical attribute of the card, such as its shape, thickness, material from which it is made, density, color, magnetic resonance, resistive or capacitive characteristics, etc. One example of a physical characteristic is notches in the transverse edges of the card. Another example is holes or transparent portions in the card. Further or alternatively, the card could include indicia thereon to identify the card, such as barcode, text, printed patterns, holograms, magnetic strips, a radio frequency identification (RFID) tag disposed on or in the cleaning card, and the like.
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout.
Referring to
The feed device is described below as a card printer 30, and the cleaning media 10 is described below in conjunction with the cleaning operation of the card printer 30. However, it is appreciated that the cleaning media 10 can alternatively be used to clean other feed devices. For example, the cleaning media 10 can be used to clean the rollers, stationary elements, and other portions of various types of feed devices such as other types of printers, lamination stations and machines, copiers, or transport mechanisms used to feed stock such as paper, cardboard, plastic, metal, and the like. In this regard, the size and material of the cleaning media 10 can be selected according to the dimensions, operating parameters, and cleaning demands of the particular feed device that is to be cleaned with the media 10.
The stop portion 20 of the cleaning media 10 defines at least one dimension that is greater than a corresponding dimension of the feed path 32 and, hence, the laminar portion 12. That is, at least one of the dimensions of the cleaning media 10 is sufficiently large to prevent the passage of the stop portion 20 through the feed path 32. For example, as illustrated in
As is known in the printing industry, the head 54 of the card printer 30 can be a device for disposing a dye onto the stock cards. For example, a thermal dye ribbon 70 can extend from a supply spool 72 to a take-up spool 74 with the ribbon 70 disposed between the head 54 and one of the cards in the feed path 32. Dyes of one or more colors are disposed on the ribbon 70, and the head 54 is configured to press the ribbon 70 against the card and/or heat the ribbon 70 at particular locations so that the dye in the particular locations of the ribbon 70 is transferred to the card. Such a thermal printing operation is described, e.g., in U.S. Pat. No. 6,151,037 to Kaufman, et al.; U.S. Pat. No. 5,978,004 to Ehrhardt; and U.S. Pat. No. 5,657,066 to Adams, et al., each of which is assigned to the assignee of the present application, and the contents of each of which are incorporated herein in their entirety by reference.
Thus, as each stock card is fed along the feed path 32 of the printer 30, the head 54 can dispose one or more colors onto the card in a predetermined pattern. In some cases, the ribbon 70 can define repeating frames of panels, each panel having a dye of a different color than the other panels of the same frame. For example, each frame can include panels that are yellow, magenta, and cyan, respectively. The stock cards can be alternately advanced and retracted in opposite directions along the feed path 32 so that each card is fed under the head 54 multiple times, during which the head 54 can print different colors from the different panels of a frame. The ribbon 70 and spools 72, 74 are shown in dashed lines in
The cleaning media 10 is configured to be received at least partially in the feed path 32, and in some cases, the laminar portion 12 of the cleaning media 10 can have a length LL as long as the feed path 32 so that the media 10, when fed through the feed path 32, can be disposed entirely through the path 32. For example,
As described above, the stop portion 20 of the media 10 is larger in at least one dimension than the feed path 32 so that the stop portion 20 is restrained from entering the feed path 32. For example, as illustrated in
According to another embodiment of the invention, the cleaning media 10 can be engaged in the feed path 32 by contact between an adjustable member and the cleaning media 10. For example, a smart card contact 94 can be configured to make electrical contact with a conductive pad on a smart card in the feed path 32. An electromagnetic solenoid 96 can be positioned opposite the feed path 32 from the smart card contact 94 and configured to adjust a cap 98 or plunger against the smart card in the feed passage 32 to urge the smart card against the smart card contact 94. With the cleaning media 10 in the feed path 32, the solenoid 96 can move the cap 98 to an extended position (shown in dashed lines in
The cleaning media 10 also defines an identification feature, by which the printer 30 can identify the cleaning media 10. For example, as illustrated in
The identification feature can be detected by the printer 30 in order to distinguish the cleaning media 10 from the stock medias typically printed in the printer 30 and/or to identify the particular cleaning media 10. For example, as shown in
Thus, the identification feature can be used to “lock” the media 10 to prevent its use after a predetermined number of uses. Further, in some cases, the printer 30 can lock the media 10 in other ways. For example, the printer 30 can provide an indication of the use of the media 10 by printing a mark on the media 10, by breaking or deforming the media 10 using a physical force or heat, or by otherwise subjecting the media 10 to pressure, heat, light, or the like.
In other embodiments, the printer 30 can alternatively detect whether the media 10 is dirty, regardless of the number of times that the media 10 has been used. That is, the printer 30 can include a detector for detecting the amount of use or remaining life of the media 10, e.g., by detecting cleanliness of the media 10. For example, the printer 30 can include an optical sensor for detecting the amount of lint or other debris on the media 10, the amount of wear or discoloration of the media 10, or other attributes of the media 10 that are indicative of the remaining use of the media 10.
As illustrated in
In any case, the identification feature(s) can be disposed symmetrically on the cleaning media 10 so that the cleaning media 10 can be received into the printer 30 in more than one orientation with the identification feature properly oriented. For example, the two notches 80, 82 of the cleaning media 10 illustrated in
According to one method of cleaning the printer 30 illustrated in
In other embodiments, the detector (previously described as the source 90 and transducer 92) can instead be configured to interact with the identification feature through electromagnetic or magnetic energy. For example, the detector can be a radio frequency interrogation system configured to interrogate a radio frequency identification device on the cleaning media 10. Alternatively, the detector can be an optical reader 200 (
The cleaning operation can proceed with multiple stages of operation. In one stage, the rollers 38, 40, 42, 44, 46, 48 can be actuated to advance and retract the cleaning media 10 in opposite directions of the feed path 32 while the head 54 is disposed against the cleaning media 10 so that the cleaning media 10 makes sliding contact with the head 54, thereby cleaning the head 54. In some cases, the head 54 can be adjustably mounted in the printer 30, and can be adjusted toward the roller 44 during at least part of the cleaning operation to achieve sufficient contact between the head 54 and the cleaning media 10. Similarly, other stationary members along the feed path 32 can be cleaned by the passage of the cleaning media 10. For example, the cleaning media 10 can clean a magnetic encoder device 64a, 64b that is used for encoding magnetic strips on the stock media, an optical device that detects features of the media, and the like, each of which can be mounted on the head 54 or elsewhere along the feed path 32. For example, the cleaning media 10 can also clean the smart card contact 94 and/or the electromagnetic solenoid 96 that is positioned opposite the feed path 32 from the smart card contact 94. The devices that are cleaned by the cleaning media 10 can be located on either side of the cleaning media 10. For example, as illustrated, the magnetic encoder device can be located at positions indicated by reference numerals 64a or 64b, though only one magnetic encoder device is typically provided.
Before or after the cleaning of the head 54, a second cleaning stage can be performed to clean the rotating rollers 38, 40, 42, 44, 46, 48, 50, 52, 56, 58. In the second stage, the cleaning media 10 is fed along the feed path 32 until the stop portion 20 of the cleaning media 10 is disposed against the exit of the printer 30, and the stop portion 20 is restrained from entering the feed path 32. The rollers 38, 40, 42, 44, 46, 48 are then rotated in a direction to generally urge the stop portion 20 of the cleaning media 10 into the feed path 32. Thus, the cleaning media 10 remains stationary while the rollers 38, 40, 42, 44, 46, 48 rotate so that the surface of each roller 38, 40, 42, 44, 46, 48 makes sliding contact with the cleaning media 10, thereby cleaning debris from the rollers 38, 40, 42, 44, 46, 48 and onto the cleaning media 10. In other embodiments of the present invention, the upper rollers 50, 52, 56, 58 can also communicate with a rotational driver, such as a motor, so that the upper rollers 50, 52, 56, 58 also rotate against the cleaning media 10. As discussed, the cleaning media 10 may be fed through the feed path 32 in an opposite direction from the direction used to print on the media stock. This is typically done because the exit 30 is more accessible and is not a limitation to the present invention. The cleaning media 10 could be fed in the opposite direction if desired. The motor drive or drives for the rollers is shown schematically in
In some embodiments of the invention, the printer 30 can signal or indicate to the operator that the cleaning operation should be performed, e.g., after a predetermined number of printing operations have been performed, at predetermined intervals, when debris is detected in the printer 30, when stock media in the printer 30 is detected by the printer to be dirty, or at other times. For example, the printer 30 can count the number of stock media that are printed, store a value in a memory 106 of the printer that is incremented (or decremented) upon each printing operation, and notify the operator or automatically cease the operation of printing when the count reaches a threshold value such as a minimum or maximum so that the cleaning operation can be performed.
Alternatively, the printer 30 can detect the cleanliness of the stock media passing through the feed path 32, the cleanliness of the cleaning media, the cleanliness of the rollers 38, 40, 42, 44, 46, 48, 50, 52, 56, 58, or the cleanliness of other members of the printer 30 such as the print head 54, e.g., using a detection device 104 such as an optical sensor. The images captured from the detection device could be analyzed to determine the amount of lint, dirt, etc. on the media, rollers, etc. using known defect detection software. For example, there is known software in the semiconductor industry for detecting from captured images flaws in semiconductor wafers. Further, imaging software is used in the papermaking industry to detect flaws in the paper web. Similar, the same software can be adapted in some embodiments of the present invention to determine the cleanliness of the media and/or rollers.
In some cases, the cleaning operation can be performed automatically by the printer 30. In particular, the printer 30 can be configured to feed the cleaning media 10 from a stored position so that the cleaning media 10 is then disposed in the feed path 32. For example, the cleaning media 10 can be stored in a special bin or position so that the printer 30 can retrieve the cleaning media 10 for a cleaning operation, without requiring that the operator provide the cleaning media 10 to a loading position at that time. The bin for the cleaning media 10 can be similar to the hopper 62, but configured to supply the cleaning media 10. Alternatively, in some cases, the cleaning media 10 can be supplied from the same hopper 62 as the stock media that is used for printing. For example, the stock media can be loaded as a pack that includes one or more of the cleaning media 10, i.e., with the cleaning media 10 stacked between a predetermined number of pieces of the stock media so that the cleaning media 10 is received through the feed path 32 after a predetermined number of pieces of the stock media are printed. Further, the printer 30 can include a detector that detects when the cleaning media 10 is being fed through the feed path 32, so that the cleaning operation can be performed accordingly, e.g., by feeding the cleaning media 10 through the feed path 32 multiple times and/or restraining the cleaning media 10 in the feed path 32 (with an adjustable member such as the solenoid 96 or the head 54 as described above or otherwise) while the rollers are rotated against the media 10.
Thus, the printer 30 can automatically perform the cleaning operation, e.g., when the printer 30 determines that the cleaning operation should be performed. As described above, the printer 30 can determine that cleaning should be performed according to a schedule, or when the printer 30 detects dirt or debris in the feed path 32, such as on the rollers 38, 40, 42, 44, 46, 48, 50, 52, 56, 58, the head 54, the stock media, and the like. In this regard, the detector 104 can be configured to monitor the cleanliness of the stock media, the cleaning media 10, the roller 50, or other aspects of the printer 30. In one embodiment, the roller monitored by the detector 104 can be a tacky or sticky roller that is configured to remove debris from the stock media as the stock media passes through the feed path 32. In another embodiment, the detector 104 is configured to monitor the stock media, and the stock media can define a transparent window or other structure and the detector 104 can be configured to direct an optical beam through the window to determine the amount of debris on the stock media and/or the detector 104. Alternatively, a special piece of media having a window can be routinely fed through the feed path 32. Further, in other embodiments, the detector 104 can be positioned elsewhere along the feed path 32, such as proximate to the other rollers or the head 54.
The printer 30 can also be configured to perform the cleaning operation when the printer 30 is being otherwise serviced. For example, printer 30 can be configured to perform the cleaning operation or signal the operator to initiate the cleaning operation at a time such as when the ribbon 70 has been removed from the printer 30. Thus, if the operator removes the ribbon 70 for replacement or for servicing of the other portions of the printer 30, the printer 30 can signal to the operator via the LCD 100 that the cleaning operation should be performed. In this regard, the printer 30 can reduce the number of service operations of the printer 30 by combining the cleaning operation with the other service operations of the printer 30.
In another embodiment, the printer may include an internal clock or counter that marks the amount of time from the last time the printer was cleaned. When the clock or counter reaches a time threshold, the printer can alert the user that the printer should be cleaned, or it may instead instigate an automatic cleaning process as described herein.
In various embodiments of the present invention, the printer 30 can additionally indicate to the operator before the cleaning operation is required. In this regard, the printer 30 can include the LCD 100 as shown in
After the operator presses a key on the keypad, the operator is prompted with a first flashing message to remove the ribbon and press a key and a second message indicating that the printer 30 is in the cleaning mode. See Boxes 126, 128. In Box 130, the printer detects whether a latch for closing the head, i.e., adjusting the head toward the roller 44, is closed. If the latch is not closed, the operator is prompted with flashing messages indicating that the operator should close the head latch (see Box 132) and that the printer 30 is in the cleaning mode (see Box 134). At which time the head latch is closed, the printer 30 next detects whether a housing cover of the printer 30 is closed. See Box 136. If the cover is not closed, the operator is prompted with flashing messages indicating that the operator should close the cover (see Box 138) and that the printer 30 is in the cleaning mode (see Box 140). At which time the cover is closed, the printer 30 prompts the operator with messages indicating that the operator should insert the cleaning media 10 at the exit 36 (see Box 142) and then press any key to start (see Box 144).
When a key is pressed on the keypad, the printer 30 begins to rotate the rollers 40, 42, 44, 46, 48 in a direction for feeding the cleaning media 10 through the feed path 32 toward the entrance 34, i.e., in a clockwise direction as shown in
Next, the printer 30 determines if the correct cleaning media 10 has been inserted. For example, the rollers 40, 42, 44, 46, 48 of the printer 30 can be used to feed the media 10 through the feed path 32 in one or both directions while the detector of the printer 30 checks the identification feature of the media 30 to determine if the media is correct. See Box 148. If the media is not correct, or if no media has been inserted and fed through the feed path 32, any media that is disposed in the path 32 is ejected from the exit 36 (see Box 150), and the operator is notified by the LCD 100 that the media is invalid and prompted to press a key (see Box 152), then returned to Box 142 to be prompted to insert a cleaning media.
However, if the cleaning media 10 is determined to be correct in Box 148, the operator is notified via the LCD 100 that cleaning is in progress. See Box 154. The cleaning operation then proceeds as described above. For example, in a first stage of the cleaning operation, the cleaning media 10 can be fed through the feed path 32 in alternate directions, e.g., advanced and retracted five or more times, to clean the head 54. During each successive motion of the cleaning media 10, the identification feature can be fed proximate to the detector so that the printer 30 can verify that the correct media 10 is still in the feed path 32. In some embodiments of the present invention, the detector may be able to verify the cleaning media 10 even when the media 10 is not disposed proximate to the detector. See Box 156. In a second stage of the cleaning operation, the rollers 38, 40, 42, 44, 46, 48, 50, 52, 56, 58 of the printer 30 are cleaned by keeping the media 10 stationary and rotating at least some of the rollers 38, 40, 42, 44, 46, 48, 50, 52, 56, 58. For example, the media 10 can be fed through the feed path 32 so that the stop portion 20 is disposed at the exit 36 and physically restrained from entering the feed path 32. The rollers 38, 40, 42, 44, 46, 48 then continue to rotate to make sliding contact with the media 10. In some cases, the rollers 38, 40, 42, 44, 46, 48 can alternately rotate in the opposite direction so that the media 10 is partially ejected from the exit 36 before advancing the stop portion 20 to the exit 36 again and sliding the rollers 38, 40, 42, 44, 46, 48 on the media 10. The identification feature can be detected during the second stage of the cleaning operation, e.g., by feeding the identification feature past the detector. See Box 158. If the identification feature is an RFID tag, registration of the media 10 may be unnecessary, and the RFID tag may not need to be moved into proximity to the detector.
At the conclusion of the cleaning operation, the printer 30 determines if the cleaning operation was performed successfully. See Box 160. If not, the cleaning media 10 is ejected (see Box 162), and the operator is notified that the cleaning operation failed and prompted to press a key (see Box 164), thereafter being returned to Box 142. If the cleaning operation was successful, the cleaning media 10 is ejected and the maximum value (max) is incremented by a predetermined value (step_clean) equal to the number of printing operations that can be performed before the next cleaning operation is to be performed. See Box 166. Of course, if the counter is configured to be incremented upon each printing operation, the counter can be reset to zero upon a successful cleaning operation. In either case, a data log can be maintained in the memory 106 of the printer, e.g., to count the number of times the printer has been cleaned, the number of prints made between one or more cleanings, a schedule of the timing and/or counts of printing and cleaning operations, and the like.
The operator is notified via the LCD 100 that the cleaning was successful (see Box 168) and prompted to reinstall the ribbon 70 and close the latch (see Box 170). When the ribbon 70 is reinstalled and the latch is closed, the printer 30 returns to the ready mode of Box 110 to await a printing command for continued operation.
It is appreciated that the cleaning operation described above can additionally be performed in conjunction with other operations for cleaning or maintaining the cleanliness of the printer 30. For example, U.S. Pat. Nos. 6,285,845 and 6,408,151 describe card cleaning devices that include a cleaning roller with a sticky silicone material that removes undesirable pollutants, such as dust particles, deposited on the printable surface of the stock cards. The entire contents of each of U.S. Pat. Nos. 6,285,845 and 6,408,151 are incorporated herein in their entirety by reference. In one embodiment of the present invention, the cleaning operation described above can be performed in conjunction with the use of such a sticky roller, such as the roller 50 that is part of a cleaning cassette. Thus, the cleanliness of the feed path 32 can be maintained by the combination of the use of the sticky roller 50 and the cleaning operation using the cleaning media 10. In some cases, the cleaning media 10 can be used to clean the sticky roller 50 during the cleaning operation so that debris collected on the sticky roller 50 is then removed from the printer 30 with the cleaning media 10.
The system may also include a sensor that monitors the amount of lint and dust removed by the sticky roller from the media. This is a good indication of the type of environment in which the printer is operated. Using this information, the printer can determine how often the printer should be cleaned.
Many modifications and other embodiments of the invention will come to mind to one skilled in the art to which this invention pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the invention is not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims
1. A cleaning media configured to be inserted at least partially along a stock feed path of a printer to thereby clean portions of the printer, said cleaning media defining an identification feature configured to provide an identification to the printer of said cleaning media.
2. A cleaning media according to claim 1 wherein the identification feature comprises a physical attribute of the cleaning media.
3. A cleaning media according to claim 2 wherein the physical attribute comprises at least one optical pass-through in said cleaning media.
4. A cleaning media according to claim 3 wherein the physical attribute comprises two of the optical pass-throughs, the optical pass-throughs being disposed in a symmetric configuration on cleaning media such that the media is configured to be inserted into the printer in at least two orientations.
5. A cleaning media according to claim 2 wherein the physical attribute comprises a nonuniform dimension of the cleaning media.
6. A cleaning media according to claim 1 wherein the identification feature identifies at least one of the cleaning media and an attribute of the cleaning media.
7. A cleaning media according to claim 2 wherein the identification feature comprises a nonuniform optical characteristic of the cleaning media.
8. A cleaning media according to claim 1 wherein the identification feature is configured to communicate information contained on the cleaning media using at least one of the group consisting of electromagnetic and magnetic energy.
9. A cleaning media according to claim 8 wherein the identification feature comprises at least one of a bar code, printed indicia, magnetic strip, and hologram.
10. A cleaning media according to claim 8 wherein the identification feature is a radio frequency identification tag.
11. A cleaning media according to claim 1 wherein the identification feature identifies at least one of a printer and a characteristic of a printer with which the cleaning media is intended to be used.
12. A cleaning media according to claim 1 wherein the identification feature indicates if the cleaning media has been used before.
13. A cleaning media according to claim 12 wherein the identification feature provides a counter indicating at least one of the group consisting of a number of times that the media has been used and a remaining number of uses of the cleaning media.
14. A cleaning media according to claim 1 wherein the media defines a first portion extending in a longitudinal direction from a leading edge to a stop portion, the first portion defining a width in a transverse direction between the transverse edges configured to pass through at least a portion of the feed path, wherein the stop portion defines a dimension greater than the first portion and the feed path such that the stop portion is configured to be retained by the device while at least part of the first portion is disposed in the feed path.
15. A printing system configured to detect an identification of a cleaning media provided by an identification feature on the cleaning media, when the cleaning media is inserted into said cleaning system.
16. A printing system according to claim 15 wherein the printing system is configured to distinguish the cleaning media from stock media for printing by the system.
17. A printing system according to claim 15 wherein the system is configured to detect a physical attribute of the cleaning media for identification thereof.
18. A printing system according to claim 15 wherein the system is configured to detect from the identification feature an identification of an attribute of the cleaning media.
19. A printing system according to claim 15 wherein the system is configured to communicate information contained on the cleaning media using at least one of the group consisting of electromagnetic and magnetic energy.
20. A printing system according to claim 15 wherein the system is configured to detect at least one of a bar code, printed indicia, and hologram.
21. A printing system according to claim 15 wherein the system is configured to communicate with a radio frequency identification tag of the cleaning media.
22. A printing system according to claim 15 wherein the system is configured to detect information stored magnetically on the cleaning media.
23. A printing system according to claim 15 wherein the system is configured to accept and reject the cleaning media according to the identification feature.
24. A printing system according to claim 15 wherein the system is configured to determine if the cleaning media has been used before according to the identification feature.
25. A printing system according to claim 15 wherein the system is configured to store a value in a counter of the cleaning media indicative of at least one of the group consisting of a number of times that the media has been used and a remaining number of uses of the cleaning media.
26. A printing system according to claim 15 wherein the system is configured to lock the cleaning media to prevent subsequent use of the cleaning media for a cleaning operation.
27. A printing system according to claim 15 wherein the system is configured to use the information from the cleaning media to control the cleaning of the printing system by the cleaning media.
28. A printing system according to claim 15 wherein the printing system includes at least one movable member that is configured to be moved against the cleaning media, the printing system being configured to immobilize the cleaning media in the printing system during a cleaning operation of the printing system by the cleaning media and move the movable member against the cleaning media to clean the movable member.
29. A printing system according to claim 15 further comprising a counter for counting the number of prints made by said system since the system was last cleaned.
30. A printing system according to claim 29, wherein said printing system provides an indication when the number of prints since the last cleaning is at least equal to a threshold.
31. A printing system according to claim 29, wherein said printing system resets said counter when the printing system is cleaned.
32. A printing system according to claim 18, wherein said printing system comprises a memory containing a data log comprising the number of times the printing system has been cleaned.
33. A printing system according to claim 18, wherein said printing system comprises a memory containing a data log comprising the number prints made by the printing system between one or more cleanings.
34. A method of cleaning a printer along a stock feed path thereof, the method comprising:
- detecting an identification feature associated with a cleaning media disposed in the feed path of the printer; and
- cleaning the printer along the feed path with the cleaning media.
35. A method according to claim 34 wherein said detecting step comprises detecting a physical attribute of the cleaning media.
36. A method according to claim 34 further comprising distinguishing the cleaning media from stock media for printing according to the identification feature detected by the printer.
37. A method according to claim 34 wherein said detecting step comprises transmitting optical energy toward the cleaning media and detecting the passage of the optical energy therethrough.
38. A method according to claim 34 wherein said detecting step comprises detecting a nonuniform dimension of the cleaning media.
39. A method according to claim 34 wherein said detecting step comprises detecting an optical characteristic of the cleaning media.
40. A method according to claim 34 wherein said detecting step comprises communicating information contained on the cleaning media using at least one of the group consisting of electromagnetic and magnetic energy.
41. A method according to claim 34 wherein said detecting step comprises detecting at least one of a bar code, printed indicia, and hologram.
42. A method according to claim 34 wherein said detecting step comprises communicating with a radio frequency identification tag of the cleaning media.
43. A method according to claim 34 wherein said detecting step comprises detecting information stored magnetically on the cleaning media.
44. A method according to claim 34 further comprising rejecting the cleaning media according to the identification feature of the cleaning media.
45. A method according to claim 34 further comprising storing a value in a counter of the cleaning media indicative of at least one of the group consisting of a number of times that the media has been used and a remaining number of uses of the cleaning media.
46. A method according to claim 34 further comprising controlling the cleaning of the printer according to the information detected from the cleaning media.
47. A method according to claim 34 wherein said cleaning step comprises immobilizing the cleaning media in the printer and moving at least one movable member of the printer against the cleaning media while the cleaning media is immobilized in the printer.
48. A method according to claim 34 wherein said immobilizing step comprises advancing the cleaning media into the feed path of the printer until a stop portion of the cleaning media engages the printer to retain the cleaning media in a stationary position and wherein said wherein said moving step comprises rotating the movable member such that the movable member makes sliding contact with the cleaning media.
49. A method according to claim 34 further comprising counting the number of prints made by said system since the system was last cleaned.
50. A method according to claim 49 further comprising providing an indication when the number of prints since the last cleaning is at least equal to a threshold.
51. A method according to claim 49 further comprising resetting the counter when the printing system is cleaned.
52. A method according to claim 49 further comprising storing a data log in a memory where the data log comprises the number of times the printing system has been cleaned.
53. A method according to claim 49 further comprising storing a data log in a memory where the data log comprises the number prints made by the printing system between one or more cleanings.
54. A printer configured to determine the number of prints performed since a cleaning operation has been performed to clean a feed path of the printer.
55. A printer according to claim 54 wherein the printer is configured to detect an identification feature of a cleaning media that is disposed in the feed path of the printer for cleaning the printer.
56. A printer according to claim 55 wherein the printer is configured to distinguish the cleaning media from stock media for printing according to the identification feature detected by the printer.
57. A printer according to claim 54 wherein the printer comprises a detector configured to communicate with the identification feature using at least one of the group consisting of electromagnetic and magnetic energy.
58. A printer according to claim 54 wherein the printer comprises a memory, the printer being configured to adjust a counter stored in the memory according to the number of times that the printer is used to perform a printer operation and the number of times that the cleaning media is used to clean the printer.
59. A printer according to claim 54 wherein the printer comprises a display, the printer being configured to provide an indication via the display indicative of when the number of prints since the last cleaning is at least equal to a threshold.
Type: Application
Filed: Mar 10, 2005
Publication Date: Sep 29, 2005
Applicant:
Inventors: Danny Louie (Thousand Oaks, CA), Prasanna Prapancham (Camarillo, CA)
Application Number: 11/077,237